fix incorrectly signed ipi6_ifindex in notbsd

Author: mcginty

src/unix/notbsd/android/mod.rs

@@ -229,6 +229,11 @@ s! {
         pub nla_len: u16,
         pub nla_type: u16,
     }
+
+    pub struct in6_pktinfo {
+        pub ipi6_addr: ::in6_addr,
+        pub ipi6_ifindex: ::c_int,
+    }
 }
 
 pub const O_TRUNC: ::c_int = 512;

src/unix/notbsd/linux/mod.rs

@@ -469,6 +469,11 @@ s! {
         pub version: u8,
         pub reserved: u16,
     }
+
+    pub struct in6_pktinfo {
+        pub ipi6_addr: ::in6_addr,
+        pub ipi6_ifindex: ::c_uint,
+    }
 }
 
 pub const ABDAY_1: ::nl_item = 0x20000;

src/unix/notbsd/mod.rs

@@ -183,11 +183,6 @@ s! {
         pub ipi_spec_dst: ::in_addr,
         pub ipi_addr: ::in_addr,
     }
-
-    pub struct in6_pktinfo {
-        pub ipi6_addr: ::in6_addr,
-        pub ipi6_ifindex: ::c_uint,
-    }
 }
 
 // intentionally not public, only used for fd_set